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(No Model.)

J. H. SHORROGK & J. MARTIN.

PAPER MAKING MACHINE.

No. 495,950. Patented Apr. 18, 1 893.

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UNITED STATES PATENT OFFICE.

J'OIIN llU'lCllINSON SIIORROCK, OF DARWEN, AND JOHN lllAlt'llN, OFCALDER GROVE, ENGLAND.

PAPER-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 495,950, dated April18, 1893.

Appli ati n filed February 2' 1892. Serial No. 420,076- (No model.)Patented in England August 15, 1890, No- 12.791.

have invented new and useful Improvements in Paper-Making Machines, (forwhich we have obtained a patent in Great Britain, No. 12,791, datedAugust 15, 1890,) of which the following is a specification.

This invention refers to improvements in or relating to paper-makingmachinery and has for its object that of increasing the production ofpaper. This we effect by snitably disposing one or more perforated orslotted tubes alongside the surface of the drying cylinder or cylinders,and charging the said pipe or pipes with a blast of air from a fan orits equivalent to impinge on the surface of the paper on the dryingcylinder or cylinders or otherwise. S uitable arran gements are providedfor conveying away condensed steam or water.

Figure 1 is a side elevation of the drying cylinder of a paper makingmachine. Fig. 2 is an end elevation of Fig. 1. Fig. 3 is an enlargedsectional elevation of perforated air pipes. Fig. 4 is a brokenlongitudinal elevation of Fig. 3. Fig. 5 is a plan of slotted pipes.

In all the figures the same letters are employed to indicatecorresponding parts.

A is the drying cylinder or cylinders of a paper-making machine; B thestandards carrying pedestals or bearings to support the shaft or center0 on which the cylinder or cylinders A are mounted; D the felt employedfor carrying the pulp or wet paper to the drying cylinder or cylindersA; E the roller for delivering the pulp or wet paper D to the dryingcylinder or cylinders, and F the roller for conveying the felt back tothe other end of the machine.

The drying cylinder, or cylinders, rotates and the felt travels in thedirection indicated by the arrows. The pulp or wet paper, designated bythe dotted line D in Fig. 1, is passed along a portion of the felt D tothe roller E and thence around the cylinder A to and beneath a guideroller A whence it passes off to a receiving roll.

To the standards B. or other convenient part of the machine, is attachedthe cavitybox or chamber G and the supporting plate H, in which aremounted the perforated or slotted pipes I. The cavity-box or chamber Gis supplied with air or wind pressure from the fan or blower J by meansof the pipe K. The pipes I are placed in close proximity to the roller Eemployed for delivering the pulp or wet paper to the drying cylinder orcylinders A; and the perforations or slots are so disposed that theblast of air or wind pressure is directed so as to impinge on the pulpor wet paper immediately it is received by the drying cylinder orcylinders, and by which the drying of the same will be considerablyincreased, thus allowing of the paper-machine being accelerated with acorresponding increase in the production of paper. The fan or blower Jis fitted with the pulley L, which can be driven by a strap or belt orother equivalents from any convenient part of the paper-machine, or fromother gearing convenient or suitable for the purpose. Underneath thepipes I is placed the dish or receptacle M to collect condensed steam orwater as it is formed by the action of the blast of air or wind pressureon the pulp or wet paper on the drying cylinder or cylinders. Condensedsteam or water as it is collected in the dish or receptacle M flows tothe lowest point and down the outlet pipe N to the floor or other pipeor drain it maybe coupled with.

Having, now particularly described and ascertained the nature of oursaid invention and in what manner the same is to be performed, wedeclare that what we claim is Ina paper-making machine, the combinationwith the drying cylinder A, of the perforated or slotted pipes Iextended across the entire width of the drying cylinder to impinge ablast of air from a fan or blower over the entire surface of the Wetpulp or paour hands and affixed our seals in presence of per, thecavity-bo or chamber G, the suptwo subscribing witnesses.

porting plate H, the fan or blower J, pipes JOHN HUTGHINSON SHORROGK.[n.sgl K, dish or receptacle M, and the condensed JOHN MARTIN. L. s. 5water pipe N, as and for the purposes herein Witnesses:

set forth. ERNEST GIBBONS,

In testimony whereof we have hereunto set EDMUND CBADWICK.

